Separator bowl



E. v. LARSON ET AL SEPARATOR BOWL Filed July 1924 2 Sheets-Sheet 1 Oct. 20, 1925. 1,557,851

E. V. LARSON ET AL SEPARATOR BOWL Filed July 16, 1924 2 Shuts-Shoot 2 Patented Oct. 20, 1925.

UNITED STATES PATENT OFFICE.

ERIC VILHELM LARSON AND HUGO LINDEBE RG, OE ESKILSTUNA, SWEDEll, ASSIGNORS TO ESKILSTUNA SEPARATOR AKTIEBOLAG, O'F ESKILSTUN A, SWEDEN, A SWEDISH COMPANY.

' snrnnnroa BOWL.

Application filed July 16, 1924. Serial No. 726,250.

To all whom it may concern:

Be'it known that we, ERIC VILI-IEILM LAR- SON and HUGO LINDEBERG, subjects of the King of Sweden, and residents of Eskilstuna, Sweden, have invented a new and useful Improvement in Separator Bowls (for which an application for patent has been filed in Sweden, March 5, 1923), of which the following is a specification. I

The present invention relatesto' an inrprovement in separator bowls of the type which are provided with liner plates placed on and surrounding a central spider or. a

central distributing sleeve, and with a so- 4 called upper'p'late placed on top of said liner plates and which serves as a partition between the separated liquids, i. e. the cream and the skimmed'milk, and which also prevents the liner plates located underneath the same from becoming deformed at the rapid rotation of the bowl. Said upper plate must have such shape that it provides space for the upper ends of the milk distributing channels provided on the central spider, or on the central sleeve, and which serve to distribute the admitted whole milk into the bowl. For this purpose it is usual to provide the neck of said upper plate with an ends of the milk distributing channel or per plate.

channels there is pr ided a ring which largely fills up the said enlargement in such manner that the lower faces of the upper plate and of the ring obtain together as nearly as possible the same shape as the liner plates, so that in this manner there is formed a passage of approximately uniform width for the cream along the lower side of the up- In this manner eddies in the cream are prevented so that a superior skimming is obtained.

In the accompanying drawing an embodiment of the invention is illustrated by way of example. Fig. 1 shows a vertical section of a separator bowl according to the invene tion, Fig. 2 shows a horizontal section through the upper portion of the bowl on the line IIII in Fig. .1, Fig. 3 shows a vertical section of a separator bowl according toamodification of the invention, and Fig. 4 shows a horizontal section through the upper portion of the bowl on the line IV-IV in Fig. 3. I v

Around the tubular standard or central feed tube 1 of the separator bowl a distributing sleeve 2 is placed which may be guided on the tube, for instance by means of a button 3. In the embodiment illustrated the sleeve 2 is provided with three hollow projections 4 pressed out in the same and which form milk distributing channels 5 between said sleeve and said tube 1, said channels serving to receive whole milk from the interior ofthe tube 1 through apertures 6 in the wall of the same, and to conduct said milk and distribute the same in the bowl. Said projections 4 serve at the same time as guiding ribs for guiding the conical liner plates 7 which are run onto said sleeve, said plates being for this purpose provided with central holes of a corresponding shape. The upper plates rests on top of the liner plates and formsa partition between the cream, which flows out along the inner or lower face of said upper plate, and the skimmed milk, which flows out above said upper plate.

Said upper plate 8 also serves to prevent de formation of the liner plates at the rapid rotation of the bowl. In order to provide space for the upper ends of the projections 4: which form the milk distributing channels 5, the neck 9 of the upper plate 8 is provided with an enlargement 10. According to the present invention there is secured in the enlargement 10 a solid ring 11 which fills up the greater portion of the enlargement. The lower surface of ring 11 co-operates with the lower surface of plate 8 to form a face substantially conforming in shape to the upper face ofthe liner plates 7, and said lower face is atall points at practically the same small distance from the upper liner plate 7. By this means the formation of whirls or eddies in the cream is prevented when the cream flows upwards along the inner or lower face of the upper plate 8, and a superior skimming effect is therefore obtained. Conditions will be the same if instead of the detachable distributing sleeve 2 a so-called central spider is used, that is to say if the central feed tube 1 is provided with longitudinal ribs, in which case the whole milk may be conducted through slots or pas sages in said ribs.

In order that also the upper plate 8 shall be guided on the sleeve 2 a. recess 12 is provided in the ring 11, said recess being engaged by one of the projections at which projects a slight distance beyond'the two other projections in the radial direction. By this means the upper plate 8 will thus be guided in the same manner as the liner plates 7. It will be understood that the ring 11 may be provided for the same purpose with several such recesses 1-9,, for instance one recess for each projection 4.

The purpose of the present invention may of course also be attained by making the upper plate 8-, instead of providing it with a-ci'rcunii'erenti'al enlargement, of such shape that it follows the lower and inner faces of the ring 11, t l i at is to say by merely providing the n'pper plate with one or more vertical recesses fitting one or more of the proj ections forming the mill: distributing chambers.

Figs. 3 and 4: illustrate this modification. In this construction the central feed tube 1,

distributing sleeve 2, button 3,-ho11ewproje-ctions i, milk distributing channels 5, apertures 6 and conical liner plates 7 are similar'to those above described in connection with the construction according to Figs. 1 and 2. An upper plate 18 rests on the liner plates and has the same functions as the upper plate '8 in Figs. 1 and 2. Said upper plate is provided with a neckis), but instead of said neck being provide'dwith an enlargement as in the embodiment above described, said neck is joined to the conical upper plate 18 by the annular substantially fiat portion 20, so that the lower face of the upper plate, comprising the lower surfaces of portions 18 and 2'0, obtains a'shape substantially contormi'ngto the upper face'o'f the liner plate, as will be seen by reference to Fig. 8. In order to provide space for the upper ends of the projections 4, recesses 21 are formed at the bend between the plate 18 and the neck 19, i. e. at the lower end of said neck 19 and in the portion 20, said recesses being formed by pressing out the sheet metal of the plate and neck. Said recesses conform in shape tothe upper ends of the projections 4 one off which is preferably made larger than the otheuasf'shown in'Fig. 4, in order to provide a simple means for properly lining up the plates on the distributing sleeve 2. Y

lVe claim:

1. In a separator bowl the/combination of a central feed tube, projections on said tube, liner plates surrounding said tube, an upper plate on top of said liner plates and surrounding said tube, said upper plate having a lower face substantially conforming in shape to the upper face or said liner plates, and said upper plate being providedwith recesses for receiving the upper ends of said projections. V I I 2. In a separator bowl the combination of a. central feed tube, projections on saidtub'e,

liner plates surrounding said tube, an upper plate on top of said liner plates and surrounding said tube, said upper plate having an enlargement providing space for the upper ends of. said projections, anda ring attached to said upper plate and largely filling up the portion of said enlargement unoccupied by saidupper ends of said projections, the lower faces of said upper plate and said ring conforming substantially in shape to the upper face of an adjacent liner plate. i j

3. In a separator bowl the combination of a central feed tube, projections on said tube, liner plates surrounding said tube, an upper plate on top of said liner plates and surrounding said tube, "saidfufpper pl-ate having an enlargement providing space for the upper ends of said projections, and a ring attached to said upper plate and largely filling up the portion of said enlargement unoccupied by said upper ends of said projections, said ring being provided with a recess adapted to be engaged by the upper end of one of said projections, and the lower faces of said upper plate and said ring conforming substantially in shape to the upper face of an adjacent liner plate.

ERIC VILHELM LARSON. HUGO LINDEB-ERG. 

